Pulsafeeder Pulsar ECA NEMA7 - Manual (Page 8)

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2. SAFETY
The ECA is a sophisticated microprocessor based controller for use only with PULSAR diaphragm
metering pumps. It yields tremendous control capacity -- electrical, mechanical and (in conjunction
with the PULSAR pump) hydraulic in nature. In consideration of SAFETY, the user should be
mindful of this relative to his/her safety, that of co-workers and of the process environment. Please
consider the following prior to the installation and operation of an ECA controlled PULSAR metering
pump:
2.1 General Safety
The ECA was designed as a stroke length position actuator for operation solely with the PULSAR
metering pump. Use for any other application is considered un-safe and voids all certification
markings and warranties.
2.2 Explosive Atmosphere Safety
With the proper marking, this equipment is suitable for use in:
a) Class I, Division 1, Groups C & D
b) Zone 1, Group IIB
c) Non-hazardous locations
2.3 Electrical Safety
The ECA 's electrical installation must conform to all location relevant electrical codes.
I NSTALLATION AND ELECTRICAL MAINTENANCE MUST BE PERFORMED BY A QUALIFIED
ELECTRICIAN .
Before installing or servicing this device, all power must be disconnected from the source at
the main distribution panel. Certain calibration functions must be completed while the electronic
section of the unit is exposed and power is applied to the unit, be certain to ensure that proper
procedures are followed and that fingers, tools, and wiring does not contact exposed circuitry and
components.
The ECA emits electromagnetic energy and generates radio frequency interference. Its use is
restricted to industrial applications. The user bears all responsibility for shielding this
energy/interference.
2.4 Hydraulic Safety
Thoroughly review and adhere to the contents of the PULSAR Installation, Operation, Maintenance
Instruction manual (current version) for hydraulic installation of your PULSAR metering pump.
E XPLOSION H AZARD -- D O NOT PERFORM INSTALLATION , CALIBRATION , OR MAINTENANCE OF
ANY KIND ON THIS DEVICE WHILE CIRCUIT IS LIVE AND THE AREA IS KNOWN TO BE HAZARDOUS .
R
EMOVAL OF THE ENCLOSURE COVER TO PERFORM SIGNAL CALIBRATIONS MUST BE DONE ONLY
IF THE AREA IS KNOWN TO BE NON - HAZARDOUS . C ARE MUST BE TAKEN TO ENSURE PROPER RE -
INSTALLATION OF THE COVER GASKET AND THE COVER BOLTS MUST BE TIGHTENED SECURELY .